# IWA  Smart Building System vs eSign Assistant+

The clearest difference is update cadence: eSign Assistant+ at every 3 months against IWA  Smart Building System's every 24 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IWA  Smart Building System ships an update every 24 months, eSign Assistant+ every 3 months. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | IWA  Smart Building System | eSign Assistant+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/esign-assistant-plus/id6497228439/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 63 MB | 234 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chicony power Technology Co.,Ltd.](https://appshunter.io/developer/1186590918) | [Tpv Display Technology (China) Limited](https://appshunter.io/developer/1741305926) |

## What reviewers say

### IWA  Smart Building System

[App page](https://appshunter.io/ios/app/iwa-smart-building-system/id1517579948)

**Features:** macOS Compatibility

**In-app purchases:** none


### eSign Assistant+

[App page](https://appshunter.io/ios/app/esign-assistant-plus/id6497228439)

This app helps manage and project content onto ePaper electronic ink screen digital signage. It offers template editing, device and member management, and quick projection features for various meeting and display needs.

**Highlights:** Template management with editing and previews, Bluetooth device management with status, Member list import and management, Group management for templates, devices, and members, One-click image projection, Multilingual support (Chinese, English)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IWA  Smart Building System free?

IWA  Smart Building System is free to download, with no in-app purchases.

### Is eSign Assistant+ free?

eSign Assistant+ is free to download, with no in-app purchases.

### Do IWA  Smart Building System or eSign Assistant+ have ads?

Neither IWA  Smart Building System nor eSign Assistant+ shows ads.

### Which is updated more often, IWA  Smart Building System or eSign Assistant+?

IWA  Smart Building System ships an update every 24 months, and eSign Assistant+ every 3 months. Most recently, IWA  Smart Building System was updated on October 25, 2026 and eSign Assistant+ on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*